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Problems with Colons

Don't use a colon to separate sentence elements that belong together, such as an action verb from its objects or a linking verb from its complements.

The university sent us catalogs, maps, housing applications, and transportation information.NOT The university sent us: catalogs, maps, housing applications, and transportation information.
The four things I want are success in business, a happy marriage, creative fulfillment, and peace of mind.NOT The four things I want are: success in business, a happy marriage, creative fulfillment, and peace of mind.